This year, Druehl, Inc., will produce 57,600 hot water heaters at its plant in Delaware, in order to meet expected global demand. To accomplish this, each laborer at the plant will work 160 hours per month.
Answers (1)
Find how many six-digit numbers can be formed from the digits 2, 3, 4, 5, 6 and 7 (with repetitions), if: the odd digits must occupy even positions (i. e. 2nd, 4th and 6th) and the even digits must occupy odd positions (i. e. 1st, 3rd and 5th)
Answers (2)